Mail-bag-cast-off device.



G. H. CHRISTY. MAIL BAG GAST-OFF DEVICE. APPLIGATION FILED MAR. 16, 1m.

Lly., .fauted Fen 23, 1915.

thecrank 22 rearwardly and downwardly; the crank operating through the connecting link 21 to draw over the upper end of the releasing lever 17, the lower end of which will move outwardly away from the eyes 12 and withdraw the pin 13 therefrom and from the ring 11, which, being released from the crane, will permit the delivery of the mail bags at the predetermined station.

After the operating lever 2.5 has been tripped by the striking roller 26 and the crank-shaft 23', with its crank, thrown so as to withdraw the pin 125 through the actuating lever 17 and arm 15, the pin 13 will hang freely at the lower e id of its arm 15 and the spring 18 will automatically contract and hold the parts against rattling. In

-the event that the operating arm 25 is thrown to its lowermost position by the operator, it is understood that the striking roller'26 at the station would, of course, be positioned in a lower plane as shown in dotted lines, so as to engage the lever.

Having thus described my invention, what I claim and desire to secure by Letters Patent isf- 1. In a mail bag handling apparatus, a crane having a keeper to receive the mail `bag shackle, a horizontal pin slidable through the keeper and shackle to support the latter, a rock shaft on the crane, a link on the rock shaft depending therefrom and pivoted to said pin, a lever connected between its ends to the rock shaft, a hanger on the crane, a spring connected to the hanger and the lower end of the lever, a crank shaft connected to the upper end of the lever, and an operating lever connected to the crank shaft.

In a mail bag handling apparatus, a crane having a keeper to receive the mail bag shackle, a pin slidable through the keeper and shackle, a rock shaft, means connected to the pin and rock shaft for actuating the former from the latter, a crank shaft, means on the rock shaft connected to the crank shaft to enable the latter to actuate the former, means on the crank shaft to operate same, and means to tension the first named means whereby to normally hold the in in shackle locking position and to hol said operating means on the crank shaft in operative position.

3. In combination with a crane having a keeper and means coacting with the keeper to hold a mail bag, means to actuate said first named means to release the bag, vertically disposed means, means to connect the vertically disposed means and the actuating i means, to operate the actuating means, a means to tension the actuating means whereby to hold the `first named means in bag holding position and to also hold the operating means in vertical position.

et. In combination with a crane having a keeper and means coacting with the keeper to hold a mail bag, a rock shaft, means con nec-ted to said first named means and to the rock shaft Ato actuate the first named means, a crank shaft, means to connect the rock shaft to the crank shaft, a vertical element connected to the crank shaft for operating same, and means to tension the rock shaft whereby to both hold the first named means in bag locking position and to hold said element in vertical position.

In combination with a crane having a keeper and means coasting with the keeper to hold a mail bag, a rock shaft, means con nected to said rock shaft and to the first named means to actuate the latter, means to actuate the rock shaft, a vertical element connected to the last named means to operate the, same, and means to tension the rock shaft whereby to hold the bag holding means in operative position and to hold said element in vertical position.

ln testimony whereof I have hereunto set my hand in the presence of two subscribing witnesses.

GUY l-I. CHRISTY. Witnesses:

( )mvrzn BOYEA, W. C. BAnu). 

